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# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from oslo_concurrency import processutils
from oslo_log import log
from oslo_service import service
from oslo_service import wsgi
from ironic.api import app
from ironic.common import exception
from ironic.common.i18n import _
from ironic.conf import CONF
LOG = log.getLogger(__name__)
class WSGIService(service.ServiceBase):
"""Provides ability to launch ironic API from wsgi app."""
def __init__(self, name, use_ssl=False):
"""Initialize, but do not start the WSGI server.
:param name: The name of the WSGI server given to the loader.
:param use_ssl: Wraps the socket in an SSL context if True.
:returns: None
"""
self.name = name
self.app = app.VersionSelectorApplication()
self.workers = (CONF.api.api_workers or
processutils.get_worker_count())
if self.workers and self.workers < 1:
raise exception.ConfigInvalid(
_("api_workers value of %d is invalid, "
"must be greater than 0.") % self.workers)
self.server = wsgi.Server(CONF, name, self.app,
host=CONF.api.host_ip,
port=CONF.api.port,
use_ssl=use_ssl)
def start(self):
"""Start serving this service using loaded configuration.
:returns: None
"""
self.server.start()
def stop(self):
"""Stop serving this API.
:returns: None
"""
self.server.stop()
def wait(self):
"""Wait for the service to stop serving this API.
:returns: None
"""
self.server.wait()
def reset(self):
"""Reset server greenpool size to default.
:returns: None
"""
self.server.reset()
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